Ancient-Astronaut-98B to Mechanic Advice@gearhead.townEnglish · 1 year ago

Does optimal engine oil grade change with mileage?

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Does optimal engine oil grade change with mileage?

Ancient-Astronaut-98B to Mechanic Advice@gearhead.townEnglish · 1 year ago

I have a 2006 toyota vitz thats done 190K+ kilometers.

According to online sources, the 1 KR FE engine in my car should be filled with 5w30 grade oil.

However my friend whos very into cars advised me to get a higher grade due to the high mileage.

Should I? And if so, is there some foolproof chart?

Exactly what grade oil should I get?

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1 year ago
Found this image shared from the owners manual supposedly on local forums

https://preview.redd.it/zwibujy7x91c1.jpeg?width=1080&format=pjpg&auto=webp&s=2990acf720148ba91bf723024d02a9ed3c639055

The temps here range from 10 degrees Celsius to 45.

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